package eu.kanade.tachiyomi.extension.fr.scantrad

import eu.kanade.tachiyomi.network.GET
import eu.kanade.tachiyomi.network.asObservableSuccess
import eu.kanade.tachiyomi.source.model.*
import eu.kanade.tachiyomi.source.online.ParsedHttpSource
import eu.kanade.tachiyomi.util.asJsoup
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.Response
import org.jsoup.nodes.Document
import org.jsoup.nodes.Element
import java.util.Calendar
import java.util.Locale
import java.text.SimpleDateFormat
import rx.Observable
import java.lang.Exception

class Scantrad : ParsedHttpSource() {

    override val name = "Scantrad"

    override val baseUrl = "https://scantrad.fr"

    override val lang = "fr"

    override val supportsLatest = true

    override val client: OkHttpClient = network.cloudflareClient

    // Popular

    override fun popularMangaRequest(page: Int): Request {
        return GET("$baseUrl/mangas", headers)
    }

    override fun popularMangaSelector() = "div.h-left a"

    override fun popularMangaFromElement(element: Element): SManga {
        val manga = SManga.create()

        manga.setUrlWithoutDomain(element.attr("href"))
        manga.title = element.select("div.hmi-titre").text()
        manga.thumbnail_url = element.select("img").attr("abs:src")

        return manga
    }

    override fun popularMangaNextPageSelector() = "Not needed"

    // Latest

    override fun latestUpdatesRequest(page: Int): Request {
        return GET(baseUrl, headers)
    }

    override fun latestUpdatesParse(response: Response): MangasPage {
        val document = response.asJsoup()
        val mangas = mutableListOf<SManga>()

        document.select(latestUpdatesSelector()).map { mangas.add(latestUpdatesFromElement(it)) }

        return MangasPage(mangas.distinctBy { it.title }, false)
    }

    override fun latestUpdatesSelector() = "div.h-left > div > a"

    override fun latestUpdatesFromElement(element: Element): SManga {
        val manga = SManga.create()

        manga.url = element.attr("href").substringAfter("mangas").removeSuffix("/").substringBeforeLast("/")
        manga.title = element.parent().select("div.hmi-titre a").text()
        manga.thumbnail_url = element.select("img").attr("abs:src")

        return manga
    }

    override fun latestUpdatesNextPageSelector() = "not needed"

    // Search

    override fun fetchSearchManga(page: Int, query: String, filters: FilterList): Observable<MangasPage> {
        return client.newCall(searchMangaRequest(page, query, filters))
            .asObservableSuccess()
            .map { response ->
                searchMangaParse(response, query)
            }
    }

    override fun searchMangaRequest(page: Int, query: String, filters: FilterList): Request = popularMangaRequest(1)

    private fun searchMangaParse(response: Response, query: String): MangasPage {
        return MangasPage(popularMangaParse(response).mangas.filter { it.title.contains(query, ignoreCase = true) }, false)
    }

    override fun searchMangaSelector() = throw UnsupportedOperationException("Not used")

    override fun searchMangaFromElement(element: Element): SManga = throw UnsupportedOperationException("Not used")

    override fun searchMangaNextPageSelector() = throw UnsupportedOperationException("Not used")

    // Details

    override fun mangaDetailsParse(document: Document): SManga {
        val manga = SManga.create()

        document.select("div.mf-info").let {
            manga.title = it.select("div.titre").text()
            manga.description = it.select("div.synopsis").text()
            manga.thumbnail_url = it.select("div.poster img").attr("abs:src")
            manga.status = parseStatus(it.select("div.sub-i:last-of-type span").text())
        }

        return manga
    }

    private fun parseStatus(status: String) = when {
        status.contains("En cours") -> SManga.ONGOING
        status.contains("Terminé") -> SManga.COMPLETED
        else -> SManga.UNKNOWN
    }

    // Chapters

    override fun chapterListSelector() = "div.chapitre"

    override fun chapterFromElement(element: Element): SChapter {
        val chapter = SChapter.create()

        chapter.setUrlWithoutDomain(element.select("a.chr-button").attr("href"))
        chapter.name = element.select("div.chl-titre").text()
        chapter.date_upload = parseChapterDate(element.select("div.chl-date").text())

        return chapter
    }

    private fun parseChapterDate(date: String): Long {
        val value = date.split(" ")[3].toIntOrNull()

        return if (value != null) {
            when (date.split(" ")[4]) {
                "minute", "minutes" -> Calendar.getInstance().apply {
                    add(Calendar.MINUTE, value * -1)
                    set(Calendar.SECOND, 0)
                    set(Calendar.MILLISECOND, 0)
                }.timeInMillis
                "heure", "heures" -> Calendar.getInstance().apply {
                    add(Calendar.HOUR_OF_DAY, value * -1)
                    set(Calendar.SECOND, 0)
                    set(Calendar.MILLISECOND, 0)
                }.timeInMillis
                "jour", "jours" -> Calendar.getInstance().apply {
                    add(Calendar.DATE, value * -1)
                    set(Calendar.SECOND, 0)
                    set(Calendar.MILLISECOND, 0)
                }.timeInMillis
                "semaine", "semaines" -> Calendar.getInstance().apply {
                    add(Calendar.DATE, value * 7 * -1)
                    set(Calendar.SECOND, 0)
                    set(Calendar.MILLISECOND, 0)
                }.timeInMillis
                "mois" -> Calendar.getInstance().apply {
                    add(Calendar.MONTH, value * -1)
                    set(Calendar.SECOND, 0)
                    set(Calendar.MILLISECOND, 0)
                }.timeInMillis
                "an", "ans", "année" -> Calendar.getInstance().apply {
                    add(Calendar.YEAR, value * -1)
                    set(Calendar.SECOND, 0)
                    set(Calendar.MILLISECOND, 0)
                }.timeInMillis
                else -> {
                    return 0L
                }
            }
        } else {
            try {
                SimpleDateFormat("dd MMM yyyy", Locale.FRENCH).parse(date.substringAfter("le ")).time
            } catch (_: Exception) {
                0L
            }
        }
    }

    // Pages

    override fun pageListParse(document: Document): List<Page> {
        val pages = mutableListOf<Page>()

        document.select("div.sc-lel img").forEachIndexed { i, img ->
            pages.add(Page(i, "", img.attr("abs:data-src")))
        }

        return pages
    }

    override fun imageUrlParse(document: Document) = throw UnsupportedOperationException("Not used")

    override fun getFilterList() = FilterList()

}
